fix(devtools): runtime errors caused by tree node snapping and tab change (#63531)

Fix the runtime errors caused by the tree visualizer node auto-snapping when a tab is changed. The errors are caused since we only visually hide the tabs.

PR Close #63531

devtools/projects/ng-devtools/src/lib/shared/tree-visualizer-host/tree-visualizer.ts

@@ -313,7 +313,7 @@ export class TreeVisualizer<T extends TreeNode = TreeNode> extends GraphRenderer
     const debouncer = new Debouncer();
     const resizeObserver = new ResizeObserver(
       debouncer.debounce(([entry]) => {
-        if (!entry || !this.snappedNode) {
+        if (!entry || !entry.contentRect.width || !entry.contentRect.height || !this.snappedNode) {
           return;
         }
         // Avoid executing the code on observer init.